Norton Service Release Database N53

SERVICE RELEASE N53

NATURE OF RELEASE: Cylinder head torque settings MODELS AFFECTED: Commando- all years and models PARTS AFFECTED: Cylinder head bolts and nuts DISTRIBUTION: Worldwide (for general distribution) EXPLANATION: From the number of queries received on the subject, it is apparent that the recommended torque settings are not being adhered to. To prevent leakage at the cylinder head gasket, oil leakage and distortion, it is most important that the figures below are used at all times during assembly and rechecked periodically:   July 1971 Norton Villier Canada Limited